Experimental and Numerical Investigation of Al2O3 Nanofluids Based Crude Oil in Shell and Tube Heat Exchanger

IF 1.3 4区工程技术 Q3 ENGINEERING, MECHANICAL Journal of Engineering Thermophysics Pub Date : 2023-11-08 DOI:10.1134/S1810232823030098

A. M. M. Al-Obaidi, M. Pirmohammadi

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Abstract

Numerical investigation of heat transfer augmentation with Al₂O₃ nanofluids-based crude oil in a shell and tube heat exchanger. This paper presents numerical and experimental investigations to study the effect of using Al₂O₃ nanofluids based crude oil on heat transfer enhancement in a turbulent regime with mass flow rate of (4 to 18 kg/s) in the shell and tube heat exchanger. The investigation concentrates on the effects of the Al₂O₃ based crude oil nanofluids on friction factor, flow characteristics and heat transfer, through shell and tube heat exchanger. The results show that the thermal conductivity as well as the viscosity of Al₂O₃ nanofluid based crude oil increased with increasing nanoparticles volume fraction and decreased with increasing the temperature. The outcomes revealed that the Nusselt number improved with increasing mass flow rate and also the friction factor increases dramatically using nanofluid this because of increment in nanofluid viscosity comparing to the base fluid (crude oil), additionally the results illustrate a constant pattern along the heat exchanger.

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壳管式换热器中Al2O3纳米流体基原油的实验与数值研究

壳管式换热器中Al2O3纳米流体基原油强化传热的数值研究。本文进行了数值和实验研究，以研究在管壳式换热器中质量流速为（4至18kg/s）的湍流状态下，使用Al2O3纳米流体基原油对传热增强的影响。研究了Al2O3基原油纳米流体对管壳式换热器摩擦系数、流动特性和传热的影响。结果表明，Al2O3纳米流体基原油的导热系数和粘度随纳米颗粒体积分数的增加而增加，随温度的升高而降低。结果表明，努塞尔数随着质量流量的增加而改善，使用纳米流体时摩擦系数也显著增加，这是因为与基础流体（原油）相比，纳米流体的粘度增加，此外，结果还表明了沿换热器的恒定模式。

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来源期刊

Journal of Engineering Thermophysics THERMODYNAMICS-ENGINEERING, MECHANICAL

CiteScore

2.30

自引率

12.50%

发文量

审稿时长

3 months

期刊介绍： Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.